1A0S

SUCROSE-SPECIFIC PORIN

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth Q]	d1a0sq_	Membrane and cell surface proteins and peptides	Transmembrane beta-barrels	Porins	Maltoporin-like	Sucrose-specific porin	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)
C [auth R]	d1a0sr_	Membrane and cell surface proteins and peptides	Transmembrane beta-barrels	Porins	Maltoporin-like	Sucrose-specific porin	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)
A [auth P]	d1a0sp_	Membrane and cell surface proteins and peptides	Transmembrane beta-barrels	Porins	Maltoporin-like	Sucrose-specific porin	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth Q]	SCOP2B Superfamily	Porins	8037927	3000224	SCOP2B (2022-06-29)
C [auth R]	SCOP2B Superfamily	Porins	8037927	3000224	SCOP2B (2022-06-29)
A [auth P]	SCOP2B Superfamily	Porins	8037927	3000224	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth Q]	LamB	e1a0sQ1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Porins	T: Maltoporin-like	F: LamB	ECOD (1.6)
C [auth R]	LamB	e1a0sR1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Porins	T: Maltoporin-like	F: LamB	ECOD (1.6)
A [auth P]	LamB	e1a0sP1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Porins	T: Maltoporin-like	F: LamB	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth Q]	2.40.170.10	Mainly Beta	Beta Barrel	Maltoporin	Chain A	CATH (4.3.0)
C [auth R]	2.40.170.10	Mainly Beta	Beta Barrel	Maltoporin	Chain A	CATH (4.3.0)
A [auth P]	2.40.170.10	Mainly Beta	Beta Barrel	Maltoporin	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth P], B [auth Q], C [auth R]	PF02264	LamB porin (LamB)	LamB porin	Maltoporin (LamB protein) forms a trimeric structure which facilitates the diffusion of maltodextrins across the outer membrane of Gram-negative bacteria. The membrane channel is formed by an antiparallel beta-barrel [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth P], B [auth Q], C [auth R]	SUCROSE-SPECIFIC PORIN	wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity	transmembrane transport localization transport organic substance transport carbohydrate transport cellular process carbohydrate transmembrane transport establishment of localization monoatomic ion transport	protein-containing complex membrane pore complex membrane protein complex cellular anatomical entity cell periphery cell outer membrane external encapsulating structure cell envelope outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth P], B [auth Q], C [auth R]	IPR036998	Porin, LamB-type superfamily	Homologous Superfamily
A [auth P], B [auth Q], C [auth R]	IPR003192	Porin, LamB-type	Family
A [auth P], B [auth Q], C [auth R]	IPR021570	LamB-type porin N-terminal domain	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth P], B [auth Q], C [auth R]	OPM	Transmembrane	Beta-barrel transmembrane	Sugar porins (n=18,S=22)	Malptoporin-like proteins

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth P], B [auth Q], C [auth R]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth P], B [auth Q], C [auth R]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth P], B [auth Q], C [auth R]	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Beta-Barrel Membrane Proteins: Porins and Relatives	ScrY sucrose-specific porin

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.